Thermostatically operated valve



Oct. 1, 1940. HEDMARK 2,216,346

' THERMOS'IATICALLY OPERATED VALVE Filed Jan. 15, 1938 In venzo r':

Patented Oct. 1, 1940 UNITED STATES PATENT OFFICE 2,216,346 rnnnuosmnomrorans'rnn vaLva Kenning Basilius Hedmark, Hcdemora, Sweden ApplicationJanuary 13, 1938, Serial No. 184,770

' 1 Claim. (01. 2sc 12) The present invention relates to anautomatically acting valve for regulating the mixing of hot and coldmedia more particularly in connection with hot water or steam boilers.

The present invention relates to an automatisally-actingtemperature-regulating bleeding valve or other shunt arrangement ordevice,'which is installed in the rising piping. The valve thusinstalled is also adapted to act as a non-return valve for the returnpipes. I

The invention will be hereinafter described with reference to thedrawing, which shows a constructional form of the invention by way ofexample.

Fig. 1 of the drawingshows an end view, and m Fig. 2 shows a sectionthrough a regulating and shunt valve. I

As can be clearly seen from Fig. 2, thebody of the valve l, is providedwith a flanged connection to the boiler. A connection 8 to the returnpipes w from the heat radiators is also provided on the side of thevalve as shown in'Fig. 2, and at the upper end of the valve a flangedconnection 9 serves to connect the valve to the risers.

A disc or other valve 2 is arranged in the lower opening of theconnection I and is regulated by means of the rod 3, which in turn isacted upon ,in part by the thermostat l, capable of great elongation,and in part by an elastic or resilient spring arrangement I. Thethermostat 4 is mounted in an-inclined position across the valve body orhousing I, so that it is always completely surrounded by both hotand-cold media.

The rod 3 is pivoted on the pin 8, and transmits its movement to thedisc valve 2 by means of a 35 link Ill. The rod 3 is also provided withastriker It, or the like,which, when thevalve 2 opens causes thenonreturn valve 2| to close the connection 8 to. the return pipes. Thethermostat 4' can be adjusted by a screw ll actuated by a.

40 handle |2. I when in communication with the cold water reservoir thevalve 2 is fully open. whereby the abutment II on the rod I closes thenon-return valve 2| against the connection I, thus causing the water tocirculate through the valve 2 and the connection I to the risers,whereupon the thermostat 4 acts upon the valve 2, and the temperature ofthe water in the cold water reservoir rises, 5 whilst at the same timethe striker ll on the rod 3 is freed from the valve 2| so providingcommunication in the riser and return pipes. This permitsv the currentfrom the return water reservoir, to mix with the hot water from theboiler, 10 until a temperature is reached, which is determined by theadjustment of the thermostat l by the aid of the screw ll andthe handleII. The circulation is now in full action, the temperature of the systembeing regulated within the desired limits by the regulating means nomatter how many radiators are in circuit or what the temperature of the,boiler may be.

I claim:

' A thermostatically operated valve for regulatl0 ing the mixing of hotand cold media comprising a housing, means for connecting said housingto a pipe system, means for connectingv said housing to a. heatingapparatus, a longitudinal passage through said housing, a valve iorcontrolling. fluid from the heating apparatus, a rod member foroperating said valve, 9. lug in the housing, a pivotal member carried bysaid lug. one end of said rod member being carried by said pivotalmember, a link member connecting the other end 30 of said rod memberwith said controlling valve, a spring member controlling said rodmember, an inclined thermostatic rod, at one end connected with saidpivotal member, screw means for adjusting said thermostatic rod, ahandle for operl5 atlng said screw means, a lateral opening in thehousing for connection to return pipes, a nonv return valve in saidopening, an abutment on said non-return valve,and an abutment on saidrod member coacting therewith for operating said 40 non-return valve.

HENNI'NG BASILIUS HEDMARK.

